Patent
Process of predicting and controlling the use of cache memory in a computer system
TLDR
In this article, the cache memory space in a computer system is controlled on a dynamic basis by adjusting the low threshold which triggers the release of more cache free space and the high threshold which ceases the free space.Abstract:
The cache memory space in a computer system is controlled on a dynamic basis by adjusting the low threshold which triggers the release of more cache free space and by adjusting the high threshold which ceases the release of free space The low and high thresholds are predicted based on the number of allocations which are accomplished in response to I/O requests, and based on the number of blockages which occur when an allocation can not be accomplished The predictions may be based on weighted values of different historical time periods, and the high and low thresholds may be made equal to one another In this manner the performance degradation resulting from variations in workload caused by prior art fixed or static high and low thresholds is avoided Instead only a predicted amount of cache memory space is freed and that amount of free space is more likely to accommodate the predicted output requests without releasing so much cache space that an unacceptable number of blockages occurread more
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Music distribution systems
TL;DR: In this article, the authors describe a system where music is blanket transmitted via satellite downlink transmission to each customer's computer-based user station, and an antipiracy "ID tag" is woven into the recorded music so that any illegal copies therefrom may be traced to the purchase transaction.
Patent
Method for predictive prefetching of information over a communications network
TL;DR: In this paper, a method for predictive prefetching of objects over a computer network including the steps of providing a client computer system, providing a server computer system and having a memory, a network link to the client computer systems, the network link also providing connection of the server computer systems to the computer network, requesting from the server computers system by the client computers system a retrieval of a plurality of objects, retrieving the plurality by the server system, storing the retrieval and an identity of the client computing system in the memory of server computers.
Patent
Video distribution system
TL;DR: In this article, movie disks are distributed to customer households in a secure format on digital media such as optical disks for playing back via proprietary set-top boxes, where content providers are then paid royalties due and responsible distribution agents are compensated.
Patent
Apparatus, system, and method for destaging cached data
David Atkisson,David Flynn +1 more
TL;DR: In this paper, an apparatus, system, and method are disclosed for destaging cached data in a nonvolatile solid-state storage device (NVS) with a cache controller.
Patent
Systems and methods for providing consumers with entertainment content and associated periodically updated advertising
Charles Eric Hunter,Bernard L. Ballou,Kelly C. Sparks,Bennie L. Gibson,Randy Daniel,Greg Hodge,John H. Hebrank +6 more
TL;DR: In this article, a player device for generating audio visual signals representative of entertainment content with advertisements includes a reader mechanism for reading entertainment content pre-recorded on a first medium and reading advertisements prerecorded on another medium, and a processor generating command signals inserting advertisements read by the reader mechanism from the second medium into entertainment content read by a reader from the first medium.
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Patent
Memory systems with data storage redundancy management
Michael B. Jacobson,John W Fordemwalt,Douglas L. Voigt,Marvin D. Nelson,Hamid Vazire,Robert Baird +5 more
TL;DR: In this article, a method for managing data on a disk array is also disclosed, which stores data in one of the RAID areas according to mirror redundancy, and stored data in the other RAID area according to parity redundancy.
Patent
Dynamic buffer reallocation
TL;DR: In this paper, a normalized elapsed-time period is established based upon the number of accesses to the data storage devices, and the need for dynamic reallocation is examined.
Patent
Dynamic storage allocation system for a prioritized cache
TL;DR: In this article, the signed difference between an assigned and actual hit ratio is used to dynamically allocate cache size to a class of data and its correlation with priority of that class, and cache space is dynamically reallocated among the partitions in a direction that forces the weighted hit rate slope for each partition into equality over the entire cache.
Patent
Method and means for dynamically partitioning cache into a global and data type subcache hierarchy from a real time reference trace
TL;DR: In this article, a method and means for dynamically partitioning an LRU cache partitioned into a global cache storing referenced objects of k different data types and k local caches storing objects of a single type is described.
Patent
Software cache management of a shared electronic store in a supplex
David A. Elko,Jeffrey A. Frey,Brian Barry Moore,Jeffrey M. Nick,Kevin Frank Smith,Michael D. Swanson +5 more
TL;DR: In this article, a shared electronic store (SES) is managed by assigning storage classes (STC) to each directory entry having a data item stored in SES, and the assignments of directory entries and data elements to the respective STC can be changed at any time by any CPC.